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✅ VERYHOME is an honest brand and we have a 1-year warranty or replacement commitment. If you have any questions, you can contact our customer service at any time ✅ We have been producing high-quality wireless doorbells and have passed CE and RoHS certification ✅ Buton is the latest self-powered technology that does not require battery installation ✅ Button is Waterproof IP44Don't worry about extended use in heavy rain ✅ Remote control range up to 150m in open air, when used indoors, it will be affected by the thickness and quantity of the wall, and the distance will be about 20-80 meters. Meets the needs of most residential and high-rise buildings ✅ The latest batch of products has been upgraded with a new chip, it won't ring by itself and won't affect each other's signals Better Chips, Advanced Technology Advanced A12 signal processor, super-sensing antenna The digital signal circuit is more resistant to interference Note that these are government shoes, you need to contact customer service Self Powered this tton dos not ned to install battery When pressed, kinetic energy is converted into electrical energy Energy saving and environmental protection, more convenient Stronger Signal, Further Distance Stronger signal, enhanced wall penetration and transmission distance. Remote control range up to 150m in open air, when used indoors, it will be affected by the thickness and quantity of the wall, and the distance will be about 20-80 meters. Meets the needs of most residential and high-rise buildings waterproof IP44 Waterproof Grade Don't worry about extended use in heavy rain No Fever, Safer Upgraded IC circuit It will not heat up when plugged in for a long time Better securityDesigned to last up to 26 years High volume High volume, good sound quality Mute 100% mute setting can avoid disturbing the baby's sleep There is a LED flashing light reminder when guests ring the doorbell Free Matching Learning Code Technology, buttons and receivers can be paired freely Easy Installation No wiring required d, but tools are not required iu dont necessariili have to make holes or damage anything 1.Plug the receiver into the socket 2.Double-sided tape or screws on the back of the button 3.Stick the button to the outside wall Reminders: The button cannot be placed on an iron door because it will interfere with the signal Installation Tutorial Instructions Parameters Shose iur tsuntrs plow black Inventory ✅ Box x1 ✅ Button x1 ✅ Receiver x1 ✅ Manual x1 ✅ The accessory package contains 2 double-sided tapes and 2 screws ✅ Certificate of Conformity x1 ✅ Spare double-sided tape x2